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Most Versatile & Economical set contains everything to teach the mechanical principle of pulleys. Comprises a set of components from which pulley blocks of many different configuration may be made up. This versatile set is an economical alternative to providing a similar range of options using separate discrete pulleys. Set contains 15 plastic pulley frames, 5 each of single, double and triple sheave, each provided with a removable bearing pin and a pair of hooks. 30 plastic plain bearing pulleys, 10 each of diameters 25, 38 and 50 mm
Please note, this item is "Build to Order" and will take up to 60 days to ship after placing your order.